Bought a frigidaire window air conditioner because the one we had was really old and outdated. Well, of course it works as well as it should, but just want to say, it runs very quietly, the auto feature also helps to save energy by only turning on when temperature in room rises above the set temperature. Also the wifi in the unit is a great feature, you can see the temperature of the room and turn on the unit and set your desired temperature right from your phone! I went and bought 2 more frigidaire AC units for other rooms in the house.